64 gamopetal-t:. key to the okdees. 



Class II. Dicotyledons— Gamopetalous. 



Key to the Orders. 



Series IV. Gamopetalous— ^lovf&cs usually bisexual, regular or irregu- 

 lar; calyx superior or inferior; petals connate, forming an entire or cleft or 

 lobed corolla, rarely free to a little above the base; stamens epipetalous, 

 hypogynous or epigynous. 



( 1 ) Ovary inferior, or semi-inferior. (2). 

 Ovary superior. (13). 



( 2 ) Stamens, epipetalous. (3). 

 Stamens epigynous. (11). 



( 3 ) Anthers free. (4). 



Anthers connate. (10). 

 (4) Leaves opposite. (5). 



Leaves alternate. (8). 

 ( 5 ) Leaves exstipulate. (6). 



Leaves stipulate or whirled , Rubiacefe. 



(6) Herbs. (7). 



Shrubs. Stamens 5, Ovary 1-3-celled Caprifoliacere. 



( 7 ) Flowers not involucellate, bracteate Valeriacere. 



Flowers involucellate Dipsacese. 



( 8 ) Stamens numerous. Shrubs Styracefe. 



Stamens 5. (9). 



(9) Filaments free, semi-inferior. Campanulacese, (SpJienoclea). 



Filaments connate, flowei-s unisexual Compositse, {Xanthium). 



(10) Herbs or shrubs with tendris Cucurbitacese. 



Herbs. Leaves exstipulate, without tendrils. Ovary 1-celled, 1-ovuled. 



Compositse. 



(11) Stamens 3-5. (12). 



Stamens 8-10, anther-cells spuiTed Vacciniaceje. 



(12) Ovary 2-celled, cells 1-ovuled Good eno vese. 



Ovary 2-6-celled, cells many ovuled Campanulacese. 



